This is the 8386th most frequent Catalan word.
desvien
"Desvien" means "they divert" or "they deflect" in English.
This usage of 'desvien' showcases its function as a verb indicating the act of changing or redirecting the course of vehicles.
Els conductors desvien els vehicles per evitar el trànsit.
The drivers divert the vehicles to avoid the traffic.
In this sentence, 'es desvien' is a reflexive usage of the verb, describing natural phenomena where the rivers change their course themselves.
Els rius es desvien quan hi ha un terratrèmol.
The rivers are diverted when there's an earthquake.
Here, 'desvien' is used metaphorically to illustrate the act of redirecting focus or attention of people in a group.